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首页> 外文会议>MED-vol.16-1; American Society of Mechanical Engineers(ASME) International Mechanical Engineering Congress and Exposition; 20051105-11; Orlando,FL(US) >FORMABILITY EFORMABILITY EVALUATION OF GALVANNEALED (GA), HOT-DIP PURE ZN GALVANIZED (GI), ELECTROGALVANIZED (EG) AND ELECTROGALVANIZED PREPHOSPHATED (EGP) INTERSTITIAL FREE STEELALUATION
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FORMABILITY EFORMABILITY EVALUATION OF GALVANNEALED (GA), HOT-DIP PURE ZN GALVANIZED (GI), ELECTROGALVANIZED (EG) AND ELECTROGALVANIZED PREPHOSPHATED (EGP) INTERSTITIAL FREE STEELALUATION

机译：镀锌（GA），热浸纯ZN镀锌（GI），电镀锌（EG）和电镀锌（EGP）空隙间无锡形成的成形性评估

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摘要

The formability of galvannealed (GA), hot-dip pure Zn galvanized (GI), electrogalvanized (EG), and electrogalvanized prephosphated (EGP) interstitial free (IF) steel sheets was studied. The phases in the Fe-Zn system were characterized using electronic and optic microscopy as well as X-ray diffraction. Behavior of the Zn coating when subjected to stretching, bending and drawing was also assessed. Comparison between the performance of large-scale industrial production of GA, GI, EG and EGP coated steels was made possible. The GI steels presented the best results, due to the predominantly basal crystallographic texture, lower friction coefficient with commercial oils and better press-forming response in the pressure range of 135-l80kgf/cm2. It was also observed that the phosphate present in the EGP steels protected the structure of the EG coating, reducing the friction coefficient. Lastly, differences between the coatings, regarding stretching, bending and drawing, were confirmed.
机译：研究了镀锌（GA），热浸纯锌镀锌（GI），电镀锌（EG）和电镀锌预磷酸盐化（EGP）无间隙（IF）钢板的可成形性。 Fe-Zn系统中的相使用电子和光学显微镜以及X射线衍射进行表征。还评估了锌涂层在拉伸，弯曲和拉伸时的行为。可以对GA，GI，EG和EGP涂层钢的大规模工业生产性能进行比较。 GI钢表现出最好的结果，这是由于在135-180kgf / cm2的压力范围内，主要的基础晶体织构，与商用油的较低的摩擦系数以及更好的压制成形响应。还观察到，EGP钢中存在的磷酸盐保护了EG涂层的结构，从而降低了摩擦系数。最后，确认了涂层之间在拉伸，弯曲和拉伸方面的差异。

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